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  • 23.40.-s  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    β + ratio andβ-delayedγ-decay of146Eu (1988)
    Springer
    The European physical journal 329 (1988), S. 169-176 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.40.-s ; 23.20.Lv ; 27.60.+j ; A=146
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The positron decay of146Eu was investigated, firstly to derive for the allowed transition to the 2046 keV state in146Sm the electron capture to positron decay ratio. The experimental valueEC/β +=43.7(42) is found to be in agreement within the respective error intervals with the ones calculated from the formalism of allowed decay using the recentQ-values of146Eu. Further on, theγ-decay properties of146Eu have been reinvestigated with emphasis on implied modifications of the hitherto accepted decay scheme: 42 new levels and 33 newγ-transitions were placed in the revised level scheme, 12 of the previously reported levels were deleted. The level distribution of146Sm is discussed within a statistical model. The indication for a non-statisticalβ-strength function is observed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01283772
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    β-Delayed neutron emission of15B,18C,19,20N,34,35Al and39P (1988)
    Springer
    The European physical journal 330 (1988), S. 63-68 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 25.70.Np ; 23.40.-s ; 27.30.+ t
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The isotopes15B,18C,19,20N,34,35Al and39P have been produced as projectile-like fragments from the interaction of a86Kr beam of 45 MeV/u from GANIL with a181Ta target. Separated by the 0° magnetic analyser LISE, the nuclei are identified by means of aΔE- E semiconductor telescope. It is surrounded, in a geometry close to 4π, by a thin plastic scintillator (NE 102) and a large volume liquid scintillator (NE 213) for the detection of betas and neutrons, respectively, from the decay of the implanted nuclei. By observation of theβ-delayed neutrons, the half-livesT 1/2 and neutron emission probabilitiesP n have been measured. TheT 1/2 of18C,20N,35Al,39P and Pn of18C,19,20N,34,35Al and39P are determined for the first time. For the isotopes17C,36,37Si and38P upper limits of Pn are deduced.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01287265
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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